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256 lines
6.5 KiB
C
256 lines
6.5 KiB
C
/*-
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* Copyright (c) 1995, David Greenman
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* National Semiconductor DP8393X SONIC Driver
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*
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* This is the bus independent attachment on FreeBSD 4.x
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* written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
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*/
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_media.h>
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#include <net/if_var.h>
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#include <dev/snc/dp83932reg.h>
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#include <dev/snc/dp83932var.h>
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#include <dev/snc/dp83932subr.h>
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#include <dev/snc/if_sncreg.h>
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#include <dev/snc/if_sncvar.h>
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/* devclass for "snc" */
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devclass_t snc_devclass;
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/****************************************************************
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Resource management functions
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****************************************************************/
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/*
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* Allocate a port resource with the given resource id.
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*/
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int
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snc_alloc_port(device_t dev, int rid)
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{
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struct snc_softc *sc = device_get_softc(dev);
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struct resource *res;
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res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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0ul, ~0ul, SNEC_NREGS, RF_ACTIVE);
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if (res) {
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sc->ioport = res;
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sc->ioport_rid = rid;
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sc->sc_iot = rman_get_bustag(res);
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sc->sc_ioh = rman_get_bushandle(res);
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return (0);
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} else {
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device_printf(dev, "can't assign port\n");
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return (ENOENT);
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}
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}
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/*
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* Allocate a memory resource with the given resource id.
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*/
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int
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snc_alloc_memory(device_t dev, int rid)
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{
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struct snc_softc *sc = device_get_softc(dev);
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struct resource *res;
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res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
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0ul, ~0ul, SNEC_NMEMS, RF_ACTIVE);
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if (res) {
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sc->iomem = res;
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sc->iomem_rid = rid;
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sc->sc_memt = rman_get_bustag(res);
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sc->sc_memh = rman_get_bushandle(res);
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return (0);
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} else {
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device_printf(dev, "can't assign memory\n");
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return (ENOENT);
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}
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}
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/*
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* Allocate an irq resource with the given resource id.
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*/
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int
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snc_alloc_irq(device_t dev, int rid, int flags)
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{
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struct snc_softc *sc = device_get_softc(dev);
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struct resource *res;
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res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE | flags);
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if (res) {
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sc->irq = res;
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sc->irq_rid = rid;
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return (0);
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} else {
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device_printf(dev, "can't assign irq\n");
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return (ENOENT);
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}
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}
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/*
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* Release all resources
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*/
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void
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snc_release_resources(device_t dev)
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{
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struct snc_softc *sc = device_get_softc(dev);
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if (sc->ioport) {
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bus_release_resource(dev, SYS_RES_IOPORT,
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sc->ioport_rid, sc->ioport);
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sc->ioport = 0;
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}
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if (sc->iomem) {
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bus_release_resource(dev, SYS_RES_MEMORY,
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sc->iomem_rid, sc->iomem);
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sc->iomem = 0;
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}
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if (sc->irq) {
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bus_release_resource(dev, SYS_RES_IRQ,
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sc->irq_rid, sc->irq);
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sc->irq = 0;
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}
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if (sc->sc_ifp) {
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if_free(sc->sc_ifp);
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sc->sc_ifp = 0;
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}
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}
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/****************************************************************
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Probe routine
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****************************************************************/
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int
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snc_probe(device_t dev, int type)
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{
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struct snc_softc *sc = device_get_softc(dev);
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return snc_nec16_detectsubr(sc->sc_iot, sc->sc_ioh,
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sc->sc_memt, sc->sc_memh,
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rman_get_start(sc->irq),
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rman_get_start(sc->iomem),
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type);
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}
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/****************************************************************
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Attach routine
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****************************************************************/
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int
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snc_attach(device_t dev)
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{
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struct snc_softc *sc = device_get_softc(dev);
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u_int8_t myea[ETHER_ADDR_LEN];
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int error;
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if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 ||
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snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) {
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snc_release_resources(dev);
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return(ENOENT);
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}
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snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea);
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device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea));
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sc->sc_dev = dev;
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sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 |
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DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28;
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sc->sncr_dcr2 = 0; /* XXX */
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sc->bitmode = 0; /* 16 bit card */
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sc->sc_nic_put = snc_nec16_nic_put;
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sc->sc_nic_get = snc_nec16_nic_get;
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sc->sc_writetodesc = snc_nec16_writetodesc;
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sc->sc_readfromdesc = snc_nec16_readfromdesc;
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sc->sc_copytobuf = snc_nec16_copytobuf;
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sc->sc_copyfrombuf = snc_nec16_copyfrombuf;
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sc->sc_zerobuf = snc_nec16_zerobuf;
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/* sncsetup returns 1 if something fails */
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if (sncsetup(sc, myea)) {
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snc_release_resources(dev);
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return(ENOENT);
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}
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mtx_init(&sc->sc_lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
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MTX_DEF);
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callout_init_mtx(&sc->sc_timer, &sc->sc_lock, 0);
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error = sncconfig(sc, NULL, 0, 0, myea);
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if (error) {
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snc_release_resources(dev);
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mtx_destroy(&sc->sc_lock);
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return (error);
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}
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error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
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NULL, sncintr, sc, &sc->irq_handle);
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if (error) {
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printf("snc_isa_attach: bus_setup_intr() failed\n");
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ether_ifdetach(sc->sc_ifp);
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snc_release_resources(dev);
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mtx_destroy(&sc->sc_lock);
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return (error);
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}
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return 0;
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}
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/****************************************************************
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Shutdown routine
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****************************************************************/
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int
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snc_shutdown(device_t dev)
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{
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struct snc_softc *sc = device_get_softc(dev);
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SNC_LOCK(sc);
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sncshutdown(sc);
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SNC_UNLOCK(sc);
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return (0);
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}
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